{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["DNA", "cell type", "protein", "cell line"], "input": "Adding purified NF-kappa B protein to nuclear extracts from cells with restricted expression overcomes this lack of binding."}
{"DNA": [], "cell type": [], "protein": ["NF-kappa B protein", "NF-kappa B"], "cell line": []}